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J STOTT. GAS REGULATOR.

N0.352,072. PatentedNov.2,1886

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(No Model.) 3 She ets Sheet J. STOTT.

GAS REGULATOR.

No. 352,072. Patented Nov. 2, 1886.

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-J. STOTT.

GAS REGULATOR. V v No. 352,072. I Patented Nov. 2, 1886.

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1" UNITED STATES PATENT FICE.

AMFS STOTT, OF LONDON, ENGLAND.

GAS-REGIULIAVTO R.

SPEGIPICATIQN forming part of Letters Patent No. 352,072, dated November 2, 1886.

Application filed August 19, 1886. Serial No. 211.313. (No model.) Patented in England May 23, 1884, No. 8,127, and June 13, 1885, No. 7,240, and in Canada, No 37,099.

To all whom it may concern:

Be it known that 1, JAMES STOTT, a subject of Queen Victoria, residing at 174 Fleet street, in the city of London, England, have invented a new and useful Gas-Regulator, (for which I have obtained patents in Great Britain,No. 8,127, bearing date May 23, 1884, and No. 7 ,240, .bearing date June 13, 1885, and in Canada, No. 37,099,) of which the following is a specification. v

The first part of this invention is a special improvement in governors or regulators to be attached to the supply or feed pipe of pendent lights, gasaliers, sunlights, and also to pedestal, post, or other uprights, to determine the supply of gas to "one or more burners, so that the consumptionis maintained proportionately according to the number of burners lightedthat is, if a gasalier has, say, six burners and only one or two of them be lighted, the consumption in that one or those two is, as re-. gards the size of flame and intensity of light, exactly the same as if an additional number or the whole of them were lighted.

The governor or regulator is automatic in its action, andcan, by shifting the position of a valve, be made available for attachment to a down-feed pipe-such as a pendant or gas-a- 1ier-or to a pedestal, .post, or other upright where the feed-pipe is below the burner or.

burners.

The invention consists in the construction 5, a vertical central sectional view showing another modification; and Fig. 6, a sectional view taken on the line a b, Fig. 5.

Forthe purpose of my invention I fit the lower diaphragm, A, with a screen, B, set at an angle against the wall of the outer shell, 0, and I screw a shiftable or adjustable gas-passage partition or valvebox, D, to the upper face of the diaphragm A,in the position shown at Fig. l of the annexed drawings, so that the gas shall'pass'into the governor from a depending pipe, E, to exert its pressure against two bell valves, F G, one of which, F, is below and one, G, above a division-plate, H,

forming part of the shiftable or adjustable.

valve-box or partition D, beforementioned,

so that the gas presses on the top of one bellvalve, F, and against the under-side of the other, G. The two valves are attached to the 'same rod, J, but are arranged in different chambers, yet in communication by the openings of the seatings. The valve'rod J extends through the center of a cupped reservoir, K, and has a larger bell-shaped cup, L, the edge of which dips into mercury in the reservoir K,

and a further extension of the rod is passed througha bar or bridge-piece, J, and is inclosed by a dome, M, which makes the apparatus gas-tight.

At the side of the apparatus I form a branch pipe or passage, N, leading from the pendent or downtlow feed-pipe to the lower part, P, of

the apparatus to feed the gas thereinto, where it acts upon thevalves and equilibrates them. The float L is weighted to give the required pressure from the gas companys works. The gas passes through the apparatus, and thence to the burner by the passage Q. If the gas has to flow up from a pipe .to the apparatus,"

as by a post or pedestal, the entry into it is in a similar direction'to the above, but through the aperture Q, the gaspassage partition D for this purpose being turned half round and secured in that position, as shown at Fig. 2, for the reverse travel of the gas.

When sensitiveness and a more efficient action of the moving parts are desired,'as by the second part of my invention, I affix on or make the float L with atlat disk or plate, R, on which rollers S S of balance-weights T T are free to roll, as at Figs. 3 and 4, when the float L rises or falls. The rollers S S are on mined by the pressure of the inflowing gas. The float always adjusts itself and regulates the opening and closing of the valves F G. The four weights T T are supported by the strip or bridge-piece J by joint-pins, on which said weights have their rocking motion. They are guided and prevented falling backward by the arms U U, riding in the slotted uprights J. By the use of the double set of rocking levers or weights T T the-apparatus is not'required to be set in an exactly-level position, as any slight difference of level is compensated for by one setof weights or levers being thrown partly out of action and the other set more in action.

The rocking levers or weights before referred to, to counterbalance the float inclosed within the casing of the apparatus, can be used in combination with other or adjustable weights,VV, upon the spindle J. Said weights V V, being outside the casing, so as to be easily got at by removing a cap, WV, are increased in number according to the outlet-pressure required. These weights allow for variations within certain limits without interfering with the steadiness and the equality of the different flames, whether one, two, or more burners under control by the apparatus be lighted. This combination of inside rocking levers, T T, and outside adjustable weights, V V, is applicable to nearly all kinds of gas-governors having a vertical spindle, J, carrying a float, L, and is not limited to the special form of governor shown.

I am aware that aweighted bell-crank lever has been previously fitted to press down the valve-spindle of a gas-regulator; but this was effected by a cap fitting the spindle loosely-a most inefficient arrangement, because the arc of the circle over which one arm of the bellcrank traveled tended to thrust the spindle against the sides of the guide-hole, and so look the spindle 011 asudden rise or fall of the float, and should the apparatus be set, or should it slip out of the exact vertical, the friction or bite of the spindle against the guide-hole would prevent the float adjusting itself. Another disadvantage with that arrangement was, the spindle had an inclination imparted to it if the apparatus was not exactly upright, and this threw the valves sidewise, so that they could not close their seating-apertures; again, should a sudden jump be given to the float such as would happen on the service-pipe tap being fully and quickly opened-the impulse given to the bell-crank would throw the weight over the vertical center, and it would remain there, the float being thereby deprived of the very appliance by which its governing has to be controlled.

By my invention all the above-named obj ections are obviated, because the rocking weights act direct on the float and they only counterbalance the float, the weighting for gas-pressure being effected by other weights, which I covered bya plate, X, Figs. 5 and 6. By making the box-casting in this manner I can use valves of large diameter and of the same or different shapes, each valve sitting upon a knife-edge seating formed in the box without bushing,to which k nife-edge seating the valves are ground true. This knife-edge seating prevents accumulation of dust, or anything that would tend to stop the proper action of the valves. If the valves are of different shape, as at Fig. 5, one will act as a guide to the other when finding their seatings.

I claim-- 1. The combination, with a gas-regulator, of the shiftable or adjustable valve-box D, for adapting the regulator to a down or up flow of gas to the burners, substantially as described.

2. The combination, with a gas-regulator having the side passage, N, of the reservoir K, the cup-float L, the valvestem J, on which the float is mounted, the two valves on the valve-stem, and the shiftable or adjustable valve-box D, foradapting the regulator to a down or up flow of gas to the burners, sub stantially as described.

3. The combination, in a gas-regulator, of a valve-box, D, valve-stem J, having weights V V, reservoir K, cup-float L, and weights T, having arms U, carrying rollers S S, which act directly on the float, substantially as de scribed.

4. The combination, in a gas-regulator, of a valve-box, D, having two valve-seats of the same diameter, with the valve-stem J and the two valves F G, of the same size,but of different shapes, and seating upon the said valve seats, which are of the same diameter, substantially as described.

J AMES STOTT.

\Vitnesses:

HENRY GAEDNEY, 166 Fleet Street, London, England, Patent A r ent.

TOBIAS GAINSFORD RIDGWAY, 19 Change Alley, Cornhlll, London, England, No-

tary Public.

ICC 

